Controlling apparatus for a soldering iron



FIG. 1 is a perspective view of a controlling apparatus for a soldering iron, presenting our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right-side elevation view thereof; and,

FIG. 7 is a left-side elevation view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

The ornamental design for a controlling apparatus for a soldering iron, as shown and described. 